The Street Crimes Unit is comprised of two Detectives and one Detective Sergeant who reports to the Detective Lieutenant. The primary function of the Street Crimes Unit is to investigate drug related crime. The Street Crimes Detectives also investigate complaints of possible drug house activity, which may be submitted online here.Read more about what the Street Crimes Unit has been working on...

Members of the MCSO's Criminal Investigations Unit at a Meth Lab, removing children during a Drug Activity Complaint and processing evidence at a crime scene.

The detectives assigned to the criminal investigations unit are specially trained in one or more of the following areas: polygraph examination, computer forensics, crime scene processing, forensic evidence, crimes against children, abuse of the elderly, and homicide investigation. At a major crime scene, their function is primarily to collect all evidence, conduct interviews and interrogations and focus on developing a suspect. At each major crime scene, one of the detectives is assigned as lead investigator, who is responsible for assessing all information received and collected and assigning duties to other team members. The lead investigator role is rotated among those qualified to ensure they stay fresh and have equal opportunity to utilize their training and develop their investigative skills.

The detectives of the criminal investigations unit also have one detective secretary who is responsible for transcription of reports and interviews generated by the detectives; creating photographic lineups for detectives, patrol deputies, and outside agencies; conducting background checks on individuals involved in criminal investigations; establishing and maintaining investigative case books of homicide and other major crime investigations; as well as phone and other general office duties.